Thanks for the help. Got it almost completely clear and the debris is all gone now. Aquabot is doing its job at this point. I can see about 2' from the bottom in the deep end but I do know that all the green/debris is gone. One other thing, there are small bubbles coming out of the outlet in the shallow end (there are 2 outlets, one in shallow and one in deep end). I know that means a leak somewhere but I can't find it. I'm not losing water. Any ideas? I have some trees growing near the underground plumbing, I'm afraid that the roots have come into contact with one of the PVC pipes underground. Thanks.